w \\ >o< ■BF-T m a 37 /r?. j_aix/ 1W CHICAGO. JO-RlN. Ct)e Sntoentor's prologue. S A BOY I went to Newark, New Jl ithan Bartlett, when h called th Richard Jones, managing director of th Zinc Works in I grev\ t orks and remember when M3od, clean white oxide of zin< m the : a curios cer that, went to hem, P^ Lehieh Zinc Company's I went with him to build the Keystone Zinc Compa orks at Birmingham, Pennsylvania. I think he left the Birmingh ks and went to Bayonne, New Je remaining as manager of the Birmingham \ C. Mr. Charles Willi Philadelphia chemist, after- wards professor of chemistry at the State School of Mines, Rolla, Missouri, was employed as chemist :o assist me, or direct me, and he would spend about two days of each month at Birmingham. The bah the tim( - in Philadelphia. <L It came up in my mind, "Why do they not make white lead by the same process used to make white zinc — sublime it with fire and catch it in bag This often came up in mv mind and it annoyed me so much that one day 1 put proved that C Ten (page ¥ strain the ail LilC bUlJJIlUlU why it was ssed on s as a C. Sometirm Lewis, of th( who assisted and made tl me to corm with a large cent in retu <L Since the problems to ceeded in ov another, unt a pigment f <L Oxide o good p; thumps. the question to Mr. Williams. His answer was that it was impossible. I suppose that I am of an inquiring mind, at , least I asked him why it was impos- KMi$ sible. He turned around to me r and said, " You're a fool." That ^ped all talk between him and me ret. Of course I went on and although I had some trouble. 5 after, in reacKig Percy's Metallurgy of Lead I found that he said it would be possible to and gases from lead fumes by using some kind >ric as a strainer, if it was not for the heat and : acid. If Mr. Williams had explained to me impossible >uld not be asking me to >u, but, not knowing the difficultly ind accomplished what Mr. Charles Williams fool for proposing t in the sixties I went to Mr. George T. i firm of John T. Lewis & Bros., Philadelphia, me with in ith which I built a works .periments. Mr. Lewis encouraged Joplin, Missouri, and backed me sum of money before realizing one -n \ had troubles and ne and have suc- ■ming them, one after lint that has no equal, and aint but will not stand hard checking, it being so hard and brittle. Sublimed White Lead has the good qualities of zinc, being made with fire, and the good qualities of carbonate of lead, without any of the bad qualities of either. C. After years of exposure a paint film of Sublimed White Lead remains white, firm and solid, and presents an excellent surface for repainting. No special preparation of the sur- face is necessary, and the old paint film will take and hold a new coat to the satisfaction of the most exacting painters. <-&&£3 o^^LaAS GENERAL MANAGER, PICKER LEAD COMPANY. % u* jopn lead producti €L The proposition direct from the ay of the famili white lead indi incredulity. Tl £b!H I ^rtheless, in spite of dif- il and pr the int the in\ I I stage the charge is subjected to a heat sufficiently intense to vaporize the lead contents with sufficient access of air to oxidize it into a basic sulphate compound of lead. C Powerful suction fans carry these volatilized vapors through a long series of sheet iron pipes cr flues, up around and through the famoi i being completed during the progress, until the cooled and c< densed white vapors of lead oxy-sulphate are I Elected in fabric condensers, which allow the gases of combustion to escape through their meshes. These condensers or col- lectors are in the form of lonp; baes, hunp- oerDendicularlv in a large building, technically known as trn C When it is remembered that in this j a pure 1< nent is carried in the form cries of winding flues for a distance of pra one thousand feet, until it is finally caught and retained in the fabric strainers (bags), it will be realized that the pigment par- ticles must be in a fine state of subdivision. As a matter of fact these ultimate particles of drv Sublimed White Lead are so fine as to be practically formless — perfectly amorphous. Many pigments, especially those torn of precipitation, sion, etc., are crystalline or crypto- talline, to use the chemical term; but no other pigment, except lamp black, approac sublimed lead in fine- ness and absence of structure; and there is no other pigment to which it can be compared in dura- like product obtained by the old or quick on proi C Intelligent painters and paint experts who have studied the question ar d on the proposition that u oil is the life of paint." It i important office of pi l \l and prol its life. It i chat one which will hold in i the larger proportion of oil will, make the more satisi pigmei if C Sublimed \ chemically a bas lead. A i tain both the sulphat monoxide of U into a single chemical co pound, the dinary method unite is comp It is permanent in substance and unchangeable in color, and being unaffected by organic acids, no re g^ 4 ' > ' . tion is possible betv it and linseed oil —it is cctly inert. Being ite it is not affected jhurous or other ga the strong union luble in the liquids of the human body, and i ore non-poisonous. In f; it is ind in case of lacerated wounds ant they immediately rush to limed le C. ( duct — to the sul- and CI. with three coats of the best carbonate __ i ^ lead in oil, reduced to working 4E consistency with pure linseed oil. Bfi.1 The tesr ^osed for three \ and one month. Surface ki B' painted in exactly the same inner with Pi >ub- (1, and during the difi suit. "A dull and lifeK while "B' 1 im dis- ■nd full CL The compound- to reduce it t( burn it with red stick with a Sublimed White 1 it a temperatur ni^LK-- equivalent t r s. ig I^^^J^ For thi> if the; other, we claim that it must be for general painting pur: frailer compound. It is nent, white and un so for all tin C. Sublimed White Le uncombined produ tages over the car! ind in order to reap the benefit of the and the manner affect hem i ters t iclusic r of th undc d as foil <L Zinc tends to crack, become t in w ficial destruction of the oil. Rair wind does not remove it. Even the oil has finally dried out rem to protect the paint beneath, which, as before noted, will be found to persist smooth and flawless, and as long as a vestige of it remains it pre- sents an ideal surface for repain I C. These qualities are what should be borne in mind when designing a ready mixed paint. Whatever the formula or whatever the propor- tions of each ingredient, the office of Sublimed White Lead will i give body to the zinc while correct- ing its tendenc ■y i ' and to substitute for the fragility of lead carbonate, with its tendency to "go dead," to "check" and "chalk," the stable unchanging solidity of Sublimed White Lead. This pigment in combination with zinc alone, or with zinc and corroded lead would seem to make attainable the highest possible type of ready mixed paint, in which the known virtues of each would be utilized to the fullest extent, while the inherent defects of each are fully corrected by the others. The practical experience of the leading paint manufacturers has completely established the truth of this deduction.